Hey Ray! Explaining How Inertia Works
You may have heard the scientific expression "An object at rest stays at rest."
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You may have heard the scientific expression "An object at rest stays at rest."
Remember that one time in math class when you said, "I am never going to use this in real life"?
Pittsburgh has a lot of bridges -- 446 of them! With bridges, there are additional things to be alert for in colder weather, such as ice.
Late in winter, people usually start looking for signs that spring is on the way. The most popular is Punxsutawney Phil. The groundhog isn't the only animal though.
We have talked about how each snowfall is different. How snow is created is different, too.
The hardest season to predict weather is winter, mainly because of snow.
The Moon is neat to watch because it has several different looks during its 27 day cycle. It sometimes looks like a fingernail. Other times it looks like half of a pie, and other times it is a bright, shiny disk in the sky.
Often, I get asked, "Why are you called a meteorologist when you study and predict weather, not meteors?"
The term "polar vortex" may sound like a cold version of a "sharknado", but unlike a sharknado, the polar vortex is a real, meteorological thing.
Standing on Earth and looking out, the Earth looks flat from our very limited view. We know the Earth isn't flat, though. Did you know Earth isn't a perfect sphere either?
After a snowfall, we all like to brag about how much fell, so it is important to measure snow properly. While it sounds like an easy task, you must follow some rules.
Unlike a certain popular television show, we know that winter is coming and exactly when it will get here.
You may have heard about the Christmas Star that will become visible in the December sky. What is it, how rare is it, and how do you see this "star"? Meteorologist Ray Petelin has the answers.
When it comes to thunderstorms, can you really tell how far away a storm is by counting the seconds between the flash of lightning and the rumble of thunder? The answer is yes, but there's a little more to it.
KDKA meteorologist Ray Petelin explores the science behind gravity with slow-motion and a slinky.
Science can often surprise you! Meteorologist Ray Petelin has a cool inertia experiment where the result may be the opposite of what you think!
It's common to see icicles hanging from roofs or awnings, but can they form sideways? The Barton Family saw just that, and Ray Petelin explains how it may have happened!
When rivers, lakes, and ponds freeze over, it's natural to want to go play on them, but checking them for safety is important. Ray Petelin explains what you need to do to make sure you don't fall through.
When we get large snowfalls, the same question gets asked - why is snow white but when it melts, it's clear? Ray Petelin answers that in a new Hey Ray!
KDKA meteorologist Ray Petelin uses science to debunk some popular conspiracy theories.
Places, people, and things have a variety of reasons for why they are named the way they are, but have you ever thought about why the Arctic and Antarctic have their names? Ray Petelin has and he explains it in a new Hey Ray!
Whenever snow falls in Pittsburgh, you hear the same refrain: milk, bread, and toilet paper, but do we really need to have those in our home? Ray Petelin makes sure you know how to prepare when snow is coming!
While we may dream of a White Christmas in the 412, the weather is often much more interesting than that. Ray Petelin explains in a new Hey Ray!
Every generation when they get older love to brag about how much snow they had to deal with as a kid, but which Pittsburgh generation has the bragging rights? Ray Petelin breaks it down!
Did you ever notice your breath can heat and cool things? Meteorologist Ray Petelin shows us the science of how that works!
Police said that Lagomau Malu, 23, was responsible for abusing her 3-year-old son who died Wednesday.
North Allegheny finished the first day of the state championships in first place and are the defending champions.
Ohio's plan to use unclaimed funds to help fund construction of a new domed stadium for the Cleveland Browns has been temporarily blocked in court.
The annual KDKA Fish Fry Guide is back for Lent! Check our listings for a 2026 fish fry near you in Pittsburgh.
More than one year after a fire caused extensive damage to the auditorium at West Mifflin Area High School, the newly renovated performing arts center reopened.
"The president is constantly critical on mail-in voting, and that's ridiculous," Democratic Sen. John Fetterman said Wednesday.
"I think, overall, what's accomplished is remarkable," Sen. John Fetterman told CBS News chief White House correspondent Major Garrett in an interview Wednesday.
About 30 U.S. service members remained hospitalized Tuesday after an Iranian drone strike in Kuwait.
Defense Secretary Pete Hegseth said Tuesday that it would be the "most intense day" of strikes against Iran so far.
President Trump told CBS News the U.S. war with Iran is "very complete," and said the U.S. "could do a lot" about the Strait of Hormuz.
The gas price spikes are real and apparent. Here's how Pittsburgh drivers can save money.
The Pennsylvania Treasury will hold a public auction for unclaimed goods on Wednesday, March 25.
Pittsburgh gas prices have spiked in the last week, but how high exactly will they rise in the coming weeks?
A Pittsburgh-area man is not just giving people living with ALS a voice, he's giving them their own voice.
An investigation into fraudulent vehicle inspections has led to dozens of charges against a Pittsburgh-area auto shop owner and his mechanic, police said.
The iconic Pittsburgh St. Patrick's Day Parade is this weekend, and if you're looking to swap out the black and gold for green, Dr. Tom Petrone, owner of the Irish Design Center joins us to show us what he's got to offer!
Our friend Dr. Natalie Gentile, the co-founder of Direct Care Physicians of Pittsburgh and Rebel Wellness is back and she's showing us a quick, 10-minute at-home workout that will boost your energy and help you get moving!
Daisy Jade is at the real-life hospital that was the inspiration for The Pitt - Allegheny General Hospital, where she's learning more about how the show represents their jobs, and an upcoming fundraiser that will benefit so many things!
The stars of the Chicago Broadway National Tour are sticking around, and they're finding out if Heather and Ron were paying attention to the details of the show!
Heather and Ron are joined in studio by Ellie Roddy and Max Cervantes, two of the stars of the Chicago Broadway National Tour, which is making its latest stop in Pittsburgh!
More homeowners than ever in Allegheny County are filing appeals to try to lower their property taxes.
A cancer once rare in young people has become the number one cause of cancer-related deaths for Americans under age 50.
There is cautious optimism on the North Shore that the Pittsburgh Post-Gazette may continue to publish under new ownership.
From freshly washed cars to air conditioning units to entire porches, dust is blanketing one Westmoreland County neighborhood.
Former patients of Dr. Carl Medgaus are running out of time to try to recover money for unfinished dental work.
A Pittsburgh-area man is not just giving people living with ALS a voice, he's giving them their own voice.
A cancer once rare in young people has become the number one cause of cancer-related deaths for Americans under age 50.
Fish fries can be a quandary for people with heart and other medical issues.
With a measles outbreak in Pennsylvania, local health experts want to send a message to families.
Cracking down on the price of prescription drugs is a hefty task.
North Allegheny finished the first day of the state championships in first place and are the defending champions.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
Ohio's plan to use unclaimed funds to help fund construction of a new domed stadium for the Cleveland Browns has been temporarily blocked in court.
Here is a Pittsburgh Steelers free agency tracker for the 2026 offseason.
Heyward's new contract is said to be worth more than $32 million over two years with the first year of the deal guaranteed.
Forbes' latest ranking of the world's richest people has been released, and the list features billionaires with ties to Pittsburgh.
A fire chief says a fire at an Ohio hog farm complex has killed about 6,000 pigs and unleashed a large plume of smoke that could be seen for miles.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
The budget airline Breeze is launching a new nonstop route from Pittsburgh to Myrtle Beach this summer.
The lawsuit accuses Nippon of prioritizing revenue over worker safety.
A woman was arrested on Sunday for firing multiple shots at the Beverly Hills home of Rihanna, Los Angeles Police Department officials say.
The countdown is on, as the NFL Draft comes to Pittsburgh and America turns 250 years old.
Hillary Knight, Megan Keller and Jack and Quinn Hughes made a surprise appearance during "Heated Rivalry" star Connor Storrie's opening monologue on "SNL."
The medical drama "The Pitt" has certainly put a lot of eyes on Pittsburgh, and while the stories are fiction, the show highlights some very real things about the city.
Streaming giant Netflix declined to match Paramount Skydance's $31 per share offer for Warner Bros. Discovery.
The North Allegheny's relay team set a new record for the 200-yard medley relay.
More than one year after a fire caused extensive damage to the auditorium at West Mifflin Area High School, the newly renovated performing arts center reopened.
KDKA-TV's Bob Pompeani and 93.7 The Fan's Chris Mueller discuss today's sports topics.
New Castle police have started a program asking residents and business owners to register their security cameras for police use.
Stay on top of local weather with First Alert Meteorologist Ray Petelin's forecast!
Mike Tomlin stepped down as head coach of the Pittsburgh Steelers after 19 seasons with the team.
Pitt's regular season has ended with an 8-4 record.
Pitt's five-game winning streak came to an end with a 37-15 loss to Notre Dame.
Mason Heintschel set a new Pitt freshman single-game passing record in the Pitt win at Acrisure Stadium.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
